Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in OptimizeRx Corp (OPRX), where a total volume of 2,351 contracts has been traded thus far today, a contract volume which is representative of approximately 235,100 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 75.8% of OPRX's average daily trading volume over the past month, of 310,130 shares..